Hello I just picked up a Velleman HPS40 scope (hand held) for $60.
It works very well and was hardly used, and retail is 8 times what I paid for it.
I purchased it for the rms wattage function at all different ohm ranges. I can now test my amps to clipping to see what rms they put out at different loads.
I also purchased some dummy loads to go with it. I am going to get them set up and fan cooled.
Does anyone know much about these scopes and of their quality? Wouldnt mind hearing some feedback.
Thanks....
It works very well and was hardly used, and retail is 8 times what I paid for it.
I purchased it for the rms wattage function at all different ohm ranges. I can now test my amps to clipping to see what rms they put out at different loads.
I also purchased some dummy loads to go with it. I am going to get them set up and fan cooled.
Does anyone know much about these scopes and of their quality? Wouldnt mind hearing some feedback.
Thanks....
Hello I just picked up a Velleman HPS40 scope (hand held) for $60.
It works very well and was hardly used, and retail is 8 times what I paid for it.
I purchased it for the rms wattage function at all different ohm ranges. I can now test my amps to clipping to see what rms they put out at different loads.
I also purchased some dummy loads to go with it. I am going to get them set up and fan cooled.
Does anyone know much about these scopes and of their quality? Wouldnt mind hearing some feedback.
Thanks....
I have a Velleman HPS10, perfect for audio measurements, and even for SMPS technique up to 100kHz. Over 100kHz it is difficult to see transients, and see square-wave ris and falls.
However the the POWER RMS function is not the best for punctial measurements, due to the resolution of the AD converter (only 8 bit). But it is much better then an AC volt-meter due to integration method of power calculation.
I am also planning to upgrade my HPS10 to a HPS40, since I am working on class-d amps and LLC resonant converters.
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